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authorPaul Walmsley <pwalmsley@nvidia.com>2013-12-09 18:40:48 -0800
committerTakashi Iwai <tiwai@suse.de>2013-12-10 21:19:47 +0100
commitf62438ac53ae852eca8e98a5a96742aac41403c7 (patch)
tree88e502b2a8b682d360d745e5b382206adf40f3a8 /sound/spi
parented326363d7a7844330325148efe06a994e4bc78f (diff)
downloadleg-kernel-f62438ac53ae852eca8e98a5a96742aac41403c7.tar.gz
ALSA: at73c213: clk_round_rate() can return a zero upon error
Treat both negative and zero return values from clk_round_rate() as errors. This is needed since subsequent patches will convert clk_round_rate()'s return value to be an unsigned type, rather than a signed type, since some clock sources can generate rates higher than (2^31)-1 Hz. Eventually, when calling clk_round_rate(), only a return value of zero will be considered a error. All other values will be considered valid rates. The comparison against values less than 0 is kept to preserve the correct behavior in the meantime. Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/spi')
-rw-r--r--sound/spi/at73c213.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index 8e3d9a6c7a3b..25c38afaee49 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -174,7 +174,7 @@ static int snd_at73c213_set_bitrate(struct snd_at73c213 *chip)
dac_rate_new = 8 * (ssc_rate / ssc_div);
status = clk_round_rate(chip->board->dac_clk, dac_rate_new);
- if (status < 0)
+ if (status <= 0)
return status;
/* Ignore difference smaller than 256 Hz. */